Atomizer



March 12, 1935. D, STONE ET AL 1,994,407

ATOMIZER Filed Jan. 20, 1955 2 Sheets-Sheet 1 0 mv Y LA 2 M L: 7 m 1 6 m 3 12 M 1 2 I Z m" o 7 F March 12, 1935,

Filed Jan. 20, 1933 p. l. STONE ET AL ATOMIZER 2 Sheets-Sheet 2 Patented Mar. 12, 1935 ATOMIZER David I. Stone, Berwyn, and David Greenberg', Chicago, Ill.

Application January 20, 1933, Serial No. 652,734

13 Claims.

This invention relates to improvements in atomizers and more particularly has to do with an improved steam spray atomizer especially useful in the diffusion of insecticides, disinfectants and the like.

Objects of the invention are to provide an improved steam spray atomizer of an eflicient nature, which will be of simple, compact, light construction, that can be conveniently handled and moved from place to place, and which can be easily assembled and manufactured at low cost.

Another object of the invention is to provide an improved steam spray atomizer equipped with electric heating means, which will be automatically cut out of operation when the device does not contain a sufficient supply of water.

The invention, with other objects and advantages thereof, and the particular construction, combination and arrangement of parts comprising the same, will be understood from the hereinafter contained detailed description, when considered in connection with the accompanying drawings, forming part hereof and illustrating one embodiment of the invention.

In the drawings:

Figure 1 is a top plan view of an atomizer constructed in accordance with the present invention.

Fig; 2 is a side elevation.

Fig. 3 is a vertical section.

Fig. 4 is a detail view, on an enlarged scale, of the discharge pipe and nozzle.

Fig. 5 is a detail view of the closure cap and electrodes.

Fig. 6 is a detail section on the line 66 of Figure 2.

invention.

Referring to a detail description of the particular embodiment of the invention illustrated in the drawings, the construction shown comprises an outer main vessel or container 1 constructed of glass or like material, the same being of jar like form with an exteriorly threaded neck portion 2.

8 designates a closure cap for the container constructed of Bakelite or other suitable insulating material. The closure cap 3 has an outwardly extending annular flange 4 adapted to overlie the upper end of the threaded neck portion 2 of the container. A packing ring 5 is 5 interposed between the flange 4 of the closure cap and the top of the neck portion 2, and the closure cap is clamped to the neck portion by an interiorly threaded ring member 6 engaging the threaded neck portion 2 and having an inwardly extending flange '7 fitting over the flange 4 of the closure cap.

Within the container 1 is a receptacle 8 for the liquid insecticide or other chemical to be atomized. This inner receptacle, which is constructed of glass or similar material, is carried by the closure cap 3, said receptacle having a threaded neck portion 9 engaging a threaded socket 10 on the under side of the closure cap. 11 is a packing ring between the upper end of the neck portion 9 and the underside of the closure cap.

12 designates a discharge pipe on the closure cap communicating with the interior of the outer container 1. The discharged pipe has a nozzle 13 provided with a central restricted passage 14 and a passage 15 at one side thereof. 16 is an atomizer tube connected to the nozzle 13 by a screw coupling 1'7, said atomizer tube communicating with the passage 15 of the nozzle and extending into theinner receptacle 8 through an opening 18 in the closure cap that forms a port for the admission of air to the inner receptacle 8.

The closure cap 3 has a filling opening 19 leading to the inner receptacle 8, said filling opening being closed by a removable screw plug 20. The closure cap is also provided with a filling opening 21 leading to the outer container 1. The filling opening 21 is closed by a removable screw plug 22. A relief valve 23 is provided for the outer container 1. The relief valve may be of any suitable construction, the same being shown in the present instance as mounted on the screw plug 22.

Means is provided for heating water in the lower part of the outer container 1 to convert the same into steam and for heating the liquid chemical in the inner receptacle 8. The means for this purpose comprises a pair of metal rods 24, 25 extending from the closure cap within the outer container and supporting at their lower end portions a pair of electrodes 26, 27, of disk formation in superposed spaced relation. The electrodes 26, 27, are made of Monel metal or other suitable metal. Interposed between the electrodes 26, 2'7, are collars 28, 29,

of insulating material. The collars have reduced end portions 30, 31, each fitting through an opening in one of the electrodes, the collars being reversely arranged, as shown. The rods 24, 25, have threaded end portions 32, 33 extending through openings in the electrodes and through the collars 28, 29, and the electrodes are firmly secured on the rods by pairs of nuts 34, 35, collars 36 of insulating material and metal washers 37, the arrangement being such that each of the rods 24, 25, is electrically connected with one of the electrodes and insulated from the other electrode. The electrodes 26, 2'7, are disposed near the bottom of the outer container 1 to be submerged in water in the lower part of the container as illustrated in Figure 3 of the drawings, the level of the water being indicated by the dotted line A- -A.

The rods 24, 25, have threaded upper end portions 24, 25' extending through openings in the closure cap and secured thereto by nuts 38 and 39. Interposed between the under side of the closure cap and the nuts 38 are packing rings 40 and spring washers 41. 42, 43 designate flexible conductors having at one end thereof connecting eyes 44 engaging the upper ends of the rods 24, 25, and secured thereon by nuts 45. The flexible conductors at their outer ends are provided with a terminal plug 46 to connect the same with a supply system. The upper ends of the rods 24, 25, and the terminal eye connectors 44 are enclosed by a cover member 47 of insulating material secured to the closure can by a screw 48. p

The outer container 1 is arranged within a metal holder comprising upper and lower annular members 49, 50, and vertical connecting members 51 having extended portions 52 projecting below the lower annular member 50 to form supporting legs. The extended portions or legs 52 have inwardly extended struck out portions 53 for the bottom of the container to rest upon. The holder is provided with a U-shaped handle 54 having laterally extending terminal attaching portions 55, which extend through slots in one of the vertical connecting members 51 and the upper and lower annular members 49, 50, and fit against the inner faces of the latter. The handle 54 has openings 56, 5'7 in the upper and lower horizontal portions thereof, through which openings the flexible conductors 42, 43 are threaded, the handle serving as supporting means for the conductors.

In the operation of the device, when there is'water in the lower part of the outer container 1 and the terminal plug 46 of the conductors 42, 43 is connected with a supply system, the water will act as a conductor between the electrodes, heat will be generated to convert the water into steam, and also through the circulation of the steam in the upper part of the cont'ai'ner about the receptacle 8, the liquid chemical is heated to make the same more volatile. The steam issues in a spray from the nozzle and the liquid chemical drawn up through the tube 16 by the spray commingles therewith, resulting in an 'eflicient difiusion of the liquid chemical. As will be understood, the electric heating means is automatically cut out of operation when there is not sufficient water in the container 1 and the device will not be injured if the terminal plug 46 of the flexible conductors 42, 43, is connected with the supply system when there is not any water in the container.

What we claim is:

1. A steam spray atomizer including an outer main closed container adapted to receive water, a closed receptacle for liquid chemical to be atomized located within said outer container, a steam discharge pipe communicating with the upper part of the outer container and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, and means for heating the water in the outer container to convert the same into steam.

2. A steam spray atomizer including an outer main closed container adapted to receive water, a closed receptacle for liquid chemical to be atomized located within said outer container, a steam discharge pipe communicating with the upper part of the outer container and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, and electric heating means including a pair of spaced electrodes within the outer container, conductors leading from said electrodes to the exterior of said container, and a pair of flexible conductors connected with the first mentioned conductors and having a terminal plug at their outer ends for connecting the same with a. supply, system.

3. A steam spray atomizer including an outer container adapted to receive water having an opening at its upper end, a closure cap for said container, a closed receptacle for liquid to be atomized located within the outer container and carried by the closure cap, a steam discharge pipe on the closure cap communicating with the upper part of the outer container and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, and means for heating the water in the outer container to convert the same into steam.

4. A steam spray atomizer including an outer container adapted to receive water having an opening at its upper end, a closure cap for said container, a closed receptacle for liquid to be atomized located within the outer container and carried by the closure cap, a steam discharge pipe on the closure cap communicating with the upper part of the outer container and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, and electric heating means including a pair of spaced electrodes within the outer container, conductors leading from the electrodes and secured to the closure cap, and a pair of flexible conductors connected with the first mentioned conductors and having a terminal plug at their outer ends for connecting the same with a supply system.

5. An atomizer including an outer container to receive water having an opening at its upper end, a closure cap for said container having a threaded socket at its under side, a receptacle for liquid to be atomized located within the outer container and having a threaded neck portion engaging said socket, a steam discharge pipe on the closure cap' communicating with the. upper part of the outer container and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, and means for heating the water in the outer container to convert the same into steam.

6. A steam spray atomizer including an outer container adapted to receive water having an opening at it upper end, a closure cap for said container having a threaded socket at its under side, a receptacle for liquid to be atomized located within the outer container and having a threaded neck portion engaging said socket, a steam discharge pipe on the closure cap communicating with the upper part of the outer container and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, and electric heating means including a pair of spaced electrodes within the outer container, conductors leading from the electrodes and secured to the closure cap, and flexible conductors connected with the first mentioned conductors and having a terminal plug at their outer ends for connecting the same with a supply system.

7. An atomizer including an outer container adapted to receive water having an opening at its upper end, a closure cap for said container, a closed receptacle for liquid to be atomized located within the outer container and carried by the closure cap, a steam discharge pipe on the closure cap communicating with the upper part of the outer container and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, and electric heating means including a pair of spaced conductor rods secured at their upper ends to the closure cap and extending within the outer container to the lower part thereof, a pair of electrodes of disk formation arranged in superposed spaced relation in the lower part of said outer container and supported by said conductor rods, each of said conductor rods being electrically connected with one of said electrodes and insulated from the other, a pair of flexible conductors connected with said conductor rods and having a terminal plug at their outer ends for connecting the same with a supply system.

8. An atomizer including an outer container adapted to receive water having an exteriorly threaded neck portion, a closure cap for said container having an outwardly extending flange, a ring member detachably securing the closure cap on the container, said ring member being internally threaded to engage the threaded neck portion of the container and having an inwardly extending flange fitting against the flange of the closure cap, a closed receptacle for liquid to be atomized located within the outer container and carried by the closure cap, a steam discharge pipe on the closure cap communicating with the upper part of the outer container and having a nozzle at its outer end, an atomizer tube arrangedin aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, and electric heating means including a pair of spaced electrodes within the outer container at the lower part thereof, conductors leading from said electrodes and secured to the closure cap, and a pair of flexible conductors connected with the first mentioned conductors and having a terminal plug at their outer ends for con necting the same with a supply system.

9. A steam spray atomizer including an outer main container adapted to receive water in the lower part thereof, a closed receptacle for liquid chemical to be atomized located within the outer container, a steam discharge pipe communicating with the outer receptacle at the upper part thereof and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, and electric heating means including a pair of conductors leading into the outer container and a pair of electrodes of plate formation arranged in superposed spaced relation within the container near the bottom thereof so that water in the lower part of the container will serve as a conductor between the electrodes, and the heating means will be automatically cut out of operation when there is not suflicient water in the container to close the circuit between the electrodes.

10. A steam spray atomizer including an outer main closed container of jar like construction adapted to receive water, a closed receptacle for liquid chemical to be atomized located within the outer container, a steam discharge pipe communicating with the upper part of the outer container and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, means for heating the water in the outer container to convert the same into steam and for heating the liquid chemical in the inner receptacle, and a tubular holder within which the outer receptacle is supported, said holder being provided with a handle at one side thereof and with supporting legs.

11. A steam spray atomizer including an outer main closed container of jar like construction adapted to receive water, a closed receptacle for liquid chemical to be atomized located within the outer container, a steam discharge pipe communicating with the upper part of the outer container and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, means for heating the water in the outer container to convert the same into steam and for heating the liquid chemical in the inner receptacle, and a tubular holder within which the outer receptacle is supported, said holder comprising upper and lower annular members and spaced vertical connecting members having extended portions projecting below the lower annular member to form supporting legs, said extended leg portions having inwardly extending struck out portions for the bottom of the container to rest upon.

12. A steam spray atomizer including an outer main closed container of jar like construction adapted to receive water, a closed receptacle for liquid chemical to be atomized located within the outer container, a steam discharge pipe communicating with the upper part of the outer container and having a nozzle at its outer end, an atomizer tube arranged in aspirating relation with respect to the nozzle of the discharge pipe and extending into the inner receptacle to the lower part thereof, electric heating means including a pair of spaced electrodes within the outer container, conductors" leading from said electrodes to the exterior of said container, and a pair of flexible conductors connected with the first mentioned conductors and having a terminal plug at their outer ends for connecting the same with a supply system, and a tubular holder within which the outer receptacle is supported, said holder being provided with a U-shaped handle at one side thereof, said handle having openings in its upper and lower horizontal portions through which said flexible conductors are threaded, said handle forming a support for the conductors.

a 13. A steam spray atomizer including an outer main closed container adapted to receive water,-

thereof, and means for heating the water in the 1 outer container to convert the same into steam.

DAVID I. STONE. DAVID QREENBERG. 

